📅  最后修改于: 2020-11-18 08:16:25             🧑  作者: Mango
过滤名称的文件名。
以下是org.apache.commons.io.filefilter.NameFileFilter类的声明-
public class NameFileFilter
extends AbstractFileFilter implements Serializable
这是我们需要解析的输入文件-
Welcome to TutorialsPoint. Simply Easy Learning.
让我们打印当前目录中的所有文件和目录,然后过滤名称为Input.txt的文件。
IOTester.java
import java.io.File;
import java.io.IOException;
import org.apache.commons.io.IOCase;
import org.apache.commons.io.filefilter.NameFileFilter;
public class IOTester {
public static void main(String[] args) {
try {
usingNameFileFilter();
} catch(IOException e) {
System.out.println(e.getMessage());
}
}
public static void usingNameFileFilter() throws IOException {
//get the current directory
File currentDirectory = new File(".");
//get names of all files and directory in current directory
String[] files = currentDirectory.list();
System.out.println("All files and Folders.\n");
for( int i = 0; i < files.length; i++ ) {
System.out.println(files[i]);
}
System.out.println("\nFile with name input.txt\n");
String[] acceptedNames = {"input", "input.txt"};
String[] filesNames = currentDirectory.list( new NameFileFilter(acceptedNames, IOCase.INSENSITIVE) );
for( int i = 0; i < filesNames.length; i++ ) {
System.out.println(filesNames[i]);
}
}
}
它将打印以下结果。
All files and Folders.
.classpath
.project
.settings
bin
input.txt
src
File with name input.txt
input.txt